1. What is mph to km/h Conversion?

The mph to km/h conversion is used to convert walking or running speeds from miles per hour (used primarily in the United States) to kilometers per hour (used in most other countries). This is particularly useful for comparing exercise intensities or understanding international fitness standards.

2. How Does the Calculator Work?

The calculator uses the simple conversion formula:

Where:

• \( S_{km/h} \) — Speed in kilometers per hour
• \( S_{mph} \) — Speed in miles per hour
• 1.60934 — Conversion factor (1 mile = 1.60934 kilometers)

Explanation: Since 1 mile equals approximately 1.60934 kilometers, multiplying mph by this factor gives the equivalent speed in km/h.

3. Importance of Speed Conversion

Details: Understanding both mph and km/h is essential for international travelers, athletes comparing performances, and researchers analyzing global fitness data. Many treadmills and fitness apps display speed in both units.

4. Using the Calculator

Tips: Simply enter your walking or running speed in miles per hour (mph). The calculator will instantly show the equivalent speed in kilometers per hour (km/h).

5. Frequently Asked Questions (FAQ)

Q1: What's the average walking speed in km/h?
A: Average walking speed is about 3-4 mph (4.8-6.4 km/h). Brisk walking is typically 4-5 mph (6.4-8 km/h).

Q2: How accurate is this conversion?
A: The conversion factor is precise to 5 decimal places (1.60934), making it accurate for most practical purposes.

Q3: Why are different units used in different countries?
A: Most countries use the metric system (km/h), while the US and a few others use imperial units (mph) for historical reasons.

Q4: Can I use this for running speeds too?
A: Yes, the conversion works the same way for any speed, whether walking, running, or other movement.

Q5: How do I convert km/h back to mph?
A: Divide km/h by 1.60934, or use the reciprocal (multiply by 0.621371).